package com.yyx.filter;

import com.alibaba.fastjson.JSON;
import com.yyx.common.BaseContext;
import com.yyx.common.R;
import lombok.extern.slf4j.Slf4j;
import org.apache.tomcat.util.json.JSONParser;
import org.springframework.util.AntPathMatcher;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter(filterName = "loginCheckFilter",urlPatterns = "/*")
@Slf4j
public class LoginCheckFilter implements Filter {
    public static final AntPathMatcher PATH_MATCHER = new AntPathMatcher();

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {

        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;

//        log.info("请求路径: {}",request.getRequestURI());
        String[] url = new String[]{
               "/employee/login",
                "/employee/logout",
                "/backend/**",
                "/front/**",
                "/common/**",
                "/user/sendMsg",
                "/user/login"
//                "/voucher/**"

        };

        String requestURI = request.getRequestURI();

        boolean b = check(url, requestURI);
        if(b){
            filterChain.doFilter(request,response);
            return;
        }
        if(request.getSession().getAttribute("user") != null ){

            long currentid = (long) request.getSession().getAttribute("user");
            BaseContext.setCurrentId(currentid);

            filterChain.doFilter(request,response);
            return ;
        }
        response.getWriter().write(JSON.toJSONString(R.error("NOTLOGIN")));
        return;

//        for (String s : url){
//            boolean match = PATH_MATCHER.match(s, requestURI);
//            if(!match){
//                filterChain.doFilter(request,response);
//            }else{
//                if(request.getSession().getAttribute("employee") != null ){
//                    filterChain.doFilter(request,response);
//                    return ;
//                }else {
//                    response.getWriter().write(JSON.toJSONString(R.error("NOTLOGIN")));
//                }
//
//            }
//        }
    }

    private boolean check(String[] url,String requestURI){
        for (String s : url) {
            boolean match = PATH_MATCHER.match(s, requestURI);
            if(match){
                return true;
            }
        }
        return false;
    }
}


